Example of debugging GCC with toplevel bootstrap

[Richard Kenner]

    Remind me why it's a good idea to force me to mess with bootstrapping
    at all, when all I want is to build a copy of the compiler that I can
    use for debugging problems?  There has to be an easier way to do that.
    My laptop builds stage1 reasonably fast, but a bootstrap takes several
    hours.

    This is a serious regression for me.

This is my concern as well.